Let's explore how Solana DeFi protocol Loopscale lost $5.8 million in an exploit targeting RateX collateral pricing.

Solana-based decentralized finance (DeFi) platform Loopscale has faced a massive cyberattack that has caused a loss of around $5.8 million.

Solana-based decentralized finance (DeFi) protocol Loopscale has lost about $5.8 million in an exploit that targeted RateX collateral pricing, impacting the Solana price slightly. The exploit, which took place on April 26, has led to the theft of 1200 SOL and $5.7 million in USDC from the platform’s USDC and SOL vaults, according to reports.

Solana DeFi Protocol Hack: How It Happened

The platform has temporarily paused key functions in response to the hack of the Solana DeFi protocol to mitigate further risks.

The hacker in this Loopscale hack exploited an issue in Loopscale’s pricing mechanism to withdraw funds by taking out a series of undercollateralized loans. Past audits on the protocol had missed some vulnerabilities that resulted in this hack to become one of the crypto hacks of 2025.

According to Mary Gooneratne, founder of Loopscale, the exploit was traced to a problem with the platform’s RateX-based collateral pricing system. However, the attack did not impact the borrowers or other Solana DeFi protocol participants.

The Loopscale team took immediate action and halted the operation that included withdrawal of any funds from affected vaults by sharing an update in one more post on X: “Loopscale has re-enabled loan repayments, top-ups, and loop closing. All other app functions (including Vault withdrawals) are still temporarily restricted while we investigate and ensure mitigation of this exploit.”

The team has continued their investigations and works with law enforcement and security professionals to track the hackers and recover the stolen funds. This hack has shed light on the risks inherent in the DeFi protocols, particularly in relation to the complexity of the collateral pricing mechanism and the reliance on smart contracts. However, the team has made it clear on their commitment to user protection and investing in the incident along with aggressive security measures moving forward.

Solans Price and Broader DeFi Landscape in 2025

This Loopscale hack is one of the major crypto hacks of 2025 and a trend of increased DeFi vulnerabilities this year, with over $1.6 billion in crypto being stolen from exchanges and on-chain smart contracts in the first quarter alone. DeFi platforms, in particular, have been frequent targets, such as the $1.46 billion break-in of ByBit in February 2025, allegedly done by the North Korean hacking group Lazarus. This Loopscale breach has not impacted the Solana price that much, but it is trading at a slight decrease as of April 27, 2025.

Solana (SOL) is trading at $148.36, reflecting a decrease of $0.91, or a 0.61% drop.

Security and Future Measures

Loopscale was launched in April 2025 after a six-month close beta and is distinguished by its unique order book-based lending model. The platform allows lenders and borrowers to directly interact with each other, offering fixed-rate and fixed-duration loans that help in mitigating the risk of volatility that is often associated with DeFi lending. Overall, the Solana price is not majorly affected, and this $5.8M hack has now become part of the crypto hacks of 2025. Following the breach, the platform has pledged to strengthen the security and to work on their unidentified vulnerabilities.